## Question 1.23

$c=\lambda v$

Esin Gumustekin 2J
Posts: 57
Joined: Thu Jul 27, 2017 3:01 am

### Question 1.23

Can someone please explain what an eV is? It is much smaller than a Joule but can someone please explain what it signifies?

Amelia Georgius 1K
Posts: 25
Joined: Fri Sep 29, 2017 7:05 am
Been upvoted: 1 time

### Re: Question 1.23

An eV is an electron volt, which is another unit of energy. 1 eV = 1.60218x10^-19 J.

Angelica Dis 3k
Posts: 6
Joined: Fri Jun 23, 2017 11:40 am

### Re: Question 1.23

Hi Esin,

An electron volt, symbolized as eV, is a unit of energy. It is equal to approximately 1.6x10^-19 joules (J). One eV is equal to the amount of energy one electron aquires by accelerating, from a resting state, through a potential difference of one volt.

Hope this helps!